Thanks for the quick responce. The high quality of support is definately one of the key features that sets SAIL apart from the rest.
I certainly understand focusing your efforts on the majority of the available hardware. As I'm a hardware guy with absolutely no programming/compiling skill, my time would probably be better spent reducing the noise level and power consumption of a more mainstream motherboard.
I worded my second question poorly. I have read about, and experienced first hand with AAH/Trixbox, problems with studdering/jittery audio in music on hold and conferences when no zap card was available as a timing source. Is this still the case ?